If Lice is a incomplete or complete metamorphosis?

Lice undergo incomplete metamorphosis, which is also known as hemimetaboly. In this type of development, the immature stages, known as nymphs, resemble the adult lice, but they are smaller and lack wings. The nymphs go through a series of molts as they grow and develop, gradually acquiring the characteristics of the adult. Lice nymphs and adults typically feed on the blood of their host.